Home / 8,279.18-12,423.92-3,348.87

Finding the Fourth Proportional to 8,279.18, 12,423.92 and 3,348.87

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Solution

The fourth proportional to 8,279.18, 12,423.92 and 3,348.87 is: 5,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.18 : 12,423.92 = 3,348.87 : x
  2. Step 2: Convert to fraction form
    8,279.18/12,423.92 = 3,348.87/x
  3. Step 3: Cross multiply
    8,279.18x = 12,423.92 × 3,348.87
  4. Step 4: Simplify right side
    8,279.18x = 41,606,029.64
  5. Step 5: Solve for x
    x = 41,606,029.64/8,279.18
  6. Step 6: Final answer
    x = 5,025.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.